package com.zsw.dao;

import com.zsw.entity.User;
import org.apache.ibatis.annotations.Param;

/**
 * @author zhangsw
 */
public interface UserMapper {
    /**
     * 根据用户名查询用户
     * @param userName
     * @return
     */
    User selectByUserName(@Param("userName") String userName);
}
